{"id":207555,"date":"2025-07-08T14:02:19","date_gmt":"2025-07-08T06:02:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207555\/"},"modified":"2025-07-08T14:02:19","modified_gmt":"2025-07-08T06:02:19","slug":"epic-fhir-smart-%e5%90%8e%e7%ab%af%e6%9c%8d%e5%8a%a1%ef%bc%9a-error-invalid_client-error_description-null","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207555\/","title":{"rendered":"EPIC FHIR SMART \u540e\u7aef\u670d\u52a1\uff1a{ &#8220;error&#8221;: &#8220;invalid_client&#8221;, &#8220;error_description&#8221;: null }"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>EPIC FHIR SMART \u540e\u7aef\u670d\u52a1\uff1a{ &#8220;error&#8221;: &#8220;invalid_client&#8221;, &#8220;error_description&#8221;: null }<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-23 16:39:35<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aEPIC FHIR SMART \u540e\u7aef\u670d\u52a1\uff1a{ &#8220;error&#8221;: &#8220;invalid_client&#8221;, &#8220;error_description&#8221;: null }\u300b<\/span>\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u6211\u6b63\u5728\u5c1d\u8bd5\u5b9e\u65bd epic fhir smart \u540e\u7aef\u670d\u52a1\uff08\u540e\u7aef oauth 2.0\uff09 on go \u7f16\u7a0b\u8bed\u8a00\u3002<\/p>\n<p>\u6211\u5df2\u7ecf\u521b\u5efa\u4e86\u6211\u7684\u5f00\u53d1\u5e10\u6237\uff0c\u5728\u5176\u4e2d\u4e0a\u4f20\u4e86\u516c\u94a5\uff0c\u5e76\u9009\u62e9 <code>backend \u7cfb\u7edf <\/code> \u4f5c\u4e3a\u5e94\u7528\u7a0b\u5e8f\u53d7\u4f17\u3002<\/p>\n<p>\u6211\u5f88\u786e\u5b9a\u6211\u7684 jwt \u4ee4\u724c\u662f\u6b63\u786e\u7684\u3002\u6211\u5728 jwt.io \u4e0a\u68c0\u67e5\u8fc7\uff0c\u7b7e\u540d\u662f\u6b63\u786e\u7684\u3002\u4f46\u662f\uff0c\u6211\u603b\u662f\u6536\u5230\u6b64\u9519\u8bef\uff1a<\/p>\n<p> {\u201c\u9519\u8bef\u201d\uff1a\u201cinvalid_client\u201d\uff0c\u201cerror_description\u201d\uff1anull } <\/p>\n<p>\u6211\u4e5f\u5c1d\u8bd5\u8fc7\u5176\u4ed6\u53ef\u80fd\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u786e\u4fdd\u98de\u673a\u7d22\u8d54\u7684\u6709\u6548\u671f\u4f4e\u4e8e 5 \u5206\u949f<\/li>\n<li>\u5c06\u6709\u6548\u8d1f\u8f7d\u653e\u5165\u6b63\u786e\u5185\u5bb9\u7c7b\u578b\u7684\u6b63\u6587\u4e2d\uff0c\u5373 <code>application\/x-www-form-urlencoded<\/code><\/li>\n<li>\u786e\u4fdd\u4f7f\u7528\u6c99\u7bb1 <code>client_id<\/code><\/li>\n<li>\u4f7f\u7528\u6b63\u786e\u7684 jwt \u767b\u5f55\u65b9\u6cd5 (<code>rs384<\/code>)<\/li>\n<\/ul>\n<p>\u6211\u5e94\u8be5\u600e\u4e48\u505a\u624d\u80fd\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff1f<\/p>\n<p>\u987a\u4fbf\u8bf4\u4e00\u53e5\uff0c\u6211\u8fd8\u5728 google \u7fa4\u7ec4\u4e0a\u770b\u5230\u4e86\u4e00\u4e9b\u8ba8\u8bba\uff0c\u8bf4\u5728\u521b\u5efa\u5f00\u53d1\u5e10\u6237\u540e\u7b49\u5f85\u4e00\u4e24\u5929\u662f\u503c\u5f97\u7684\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u6211\u7684\u4ee3\u7801\u3002\u611f\u8c22\u60a8\u7684\u5e2e\u52a9\uff01<\/p>\n<pre>var (\n    oauth2TokenUrl  = \"https:\/\/fhir.epic.com\/interconnect-fhir-oauth\/oauth2\/token\"\n    sandboxClientID = \"...\"\n    privateKey      = \"...\"\n)\n\n\/\/ load private key\nsignKey, err := jwt.ParseRSAPrivateKeyFromPEM([]byte(privateKey))\nSo(err, ShouldBeNil)\n\n\/\/ construct jwt claims\nnow := time.Now()\nclaims := jwt.MapClaims{\n    \"iss\": sandboxClientID,\n    \"sub\": sandboxClientID,\n    \"aud\": oauth2TokenUrl,\n    \"jti\": uuid.New().String(),             \/\/ fill with reference id\n    \"exp\": now.Add(1 * time.Minute).Unix(), \/\/ cannot be more than 5 minutes!\n}\nlog.Info(\"  =&gt; claims:\", utility.ToJsonString(claims))\n\n\/\/ generate signed token using private key with RS384 algorithm\nalg := jwt.SigningMethodRS384\nsignedToken, err := jwt.NewWithClaims(alg, claims).SignedString(signKey)\nSo(err, ShouldBeNil)\nlog.Info(\"  =&gt; signed token\", signedToken)\n\n\/\/ prepare api call payload\npayload := map[string]string{\n    \"grant_type\":            \"client_credentials\",\n    \"client_assertion_type\": \"urn:ietf:params:oauth:client-assertion-type:jwt-bearer\",\n    \"client_assertion\":      signedToken,\n}\n\n\/\/ dispatch the api call\nreq := resty.New().\n    R().\n    EnableTrace().\n    SetFormData(payload)\nres, err := req.Post(oauth2TokenUrl)\nSo(err, ShouldBeNil)\nlog.Info(\"  =&gt; response status:\", res.StatusCode())\nlog.Info(\"  =&gt; response header:\", res.Header())\nlog.Info(\"  =&gt; response body:\", string(res.Body()))\n\n\/\/ parse response\nresBody := make(map[string]interface{})\nerr = json.Unmarshal(res.Body(), &amp;resBody)\nSo(err, ShouldBeNil)\n<\/pre>\n<p> <\/p>\n<h2>\u6b63\u786e\u7b54\u6848<\/h2>\n<p> <\/p>\n<p>\u592a\u68d2\u4e86\uff0c\u6211\u73b0\u5728\u53ef\u4ee5\u4f7f\u7528\u4e86\u3002<\/p>\n<p>\u89e3\u51b3\u65b9\u6848\u5c31\u662f<strong>\u7b49\u5f85<\/strong>\uff01\u8fd9\u5f88\u4ee4\u4eba\u56f0\u60d1\uff0c\u56e0\u4e3a\u6211\u5728\u6587\u6863\u4e2d\u627e\u4e0d\u5230\u4efb\u4f55\u5173\u4e8e\u6b64\u7684\u89e3\u91ca\uff0c\u800c\u4e14\u9519\u8bef\u6d88\u606f\u4e5f\u4e0d\u592a\u53cb\u597d\u3002<\/p>\n<p>\u603b\u4e4b\uff0c\u5728\u521b\u5efa\u5f00\u53d1\u5e94\u7528\u7a0b\u5e8f\u5e76\u5c06\u516c\u94a5\u4e0a\u4f20\u5230\u90a3\u91cc\u540e\uff0c\u6211\u4eec\u5fc5\u987b\u7b49\u5f85\u51e0\u4e2a\u5c0f\u65f6\/\u51e0\u5929\uff0c\u7136\u540e\u51ed\u8bc1\u6700\u7ec8\u624d\u80fd\u4f7f\u7528\u3002<\/p>\n<p>\u7b49\u5f85\u90e8\u5206\u9002\u7528\u4e8e<strong>\u5f00\u653e\u53f2\u8bd7<\/strong>\u548c<strong>\u5e94\u7528\u7a0b\u5e8f\u679c\u56ed<\/strong>\u5f00\u53d1\u5e10\u6237\u3002<\/p>\n<h3>\u66f4\u65b0#1<\/h3>\n<p>\u4ee5\u9632\u4e07\u4e00\u6709\u4eba\u5728\u51e0\u4e2a\u5c0f\u65f6\u540e\u4ecd\u7136\u9047\u5230\u76f8\u540c\u7684\u9519\u8bef\uff0c\u53ef\u80fd\u503c\u5f97\u68c0\u67e5 EPIC \u7684\u4ee5\u4e0b\u6307\u5357\u3002<\/p>\n<\/p>\n<p>Epic\u4f3c\u4e4e\u6709\u67d0\u79cd\u6bcf\u5929\u8fd0\u884c\u4e00\u6b21\u7684\u540c\u6b65\u673a\u5236\u3002\u56e0\u6b64\uff0c\u521b\u5efa\u5e10\u6237\u540e\u7b49\u5f85\u662f\u552f\u4e00\u7684\u89e3\u51b3\u65b9\u6848\u3002\u53e6\u8bf7\u6ce8\u610f\uff0c\u5728\u5e94\u7528\u8bbe\u7f6e\u4e2d <code>Endpoint URI<\/code> \u66f4\u6539\u540e\uff0c\u60a8\u8fd8\u9700\u8981\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u3002<\/p>\n<p>\u9519\u8bef <code>{ \"error\": \"invalid_client\", \"error_description\": null }\u5f53 <code>redirect_uri<\/code> \u53c2\u6570\u8bbe\u7f6e\u4e3a\u7c7b\u4f3c <code>localhost:3000<\/code> \u65f6\uff0c<\/code> \u4e5f\u4f1a\u663e\u793a\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aEPIC FHIR SMART \u540e\u7aef\u670d\u52a1\uff1a{ &#8220;error&#8221;: &#8220;invalid_client&#8221;, &#8220;error_description&#8221;: null }\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207555","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207555","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207555"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207555\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207555"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207555"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}